Control multiple loads with the 4‑Way WK4A Wireless Smart Switch. This compact relay module supports both WiFi and Bluetooth dual‑mode connectivity, making it ideal for modern smart home automation. Operating from 7–24 V DC, the WK4A allows seamless integration into low‑voltage systems. With four individually controlled relay channels, you can automate lighting circuits, motorised blinds, fans or other devices with ease.

Use your smartphone app or Bluetooth local control without internet, and switch over to WiFi for remote access. The module’s versatile compatibility and multiple control modes help simplify smart‑switch setups while keeping reliability high. Perfect for DIY enthusiasts, home‑automation installers and smart‑device integrators, the WK4A gives you flexible control, scheduling, and voice assistant readiness in one affordable package.

Features:

1. Dual‑mode connectivity: WiFi and Bluetooth support for flexible remote or local control.
2. Four independent relay channels to control up to four different loads.
3. Wide input voltage range: 7 V to 24 V DC, fitting various low‑voltage systems.
4. Compact size allows installation behind switches, in junction boxes or panels.
5. Smartphone app control with scheduling, timers and scenes for automation.
6. Voice assistant compatible (e.g., with Alexa/Google Home) for hands‑free switching.
7. Manual physical button support for local override and backup operation.
8. Secure firmware and reliable switching design for safe smart‑home integration.

Package Includes:

1 x 4-way WK4A WiFi Bluetooth Dual-Mode Relay Module